I'm not sure, but you mentioned importing the video at 1920x1080. Is that the actual size of the video? Most videos are actually smaller and the computer just interpolates it into a full screen video.

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You just can't put the words "Poserites" and "happy" in the same sentence - didn't you know that? LaurieA
  Using Poser since 2002. Currently at Version 11.1 - Win 10.